Hi,
I'm successfully using Marked 1.4.3 with pandoc (v1.13.0.1) as processor with :

pandoc --standalone --mathjax --from=markdown --to=html

I know it could be not in your knowledge, but you are smart !
When I try to pass a bibliography (it is executed via pandoc-citeproc)

pandoc --bibliography=local_file.bib --standalone --mathjax --from=markdown --to=html

Marked 1.4.3 doesn't to show anything, even it it does produce some html as if I didn't pass the --bibliography option.

Running exactly the same command+option in the shell produce perfectly valid html files in both cases.

As test I create a script fakedoc.sh in the same folder where I have my original markdown file, with

#!/opt/local/bin/fish
#produce selfcontaine html,good to check with browser
pandoc --standalone --mathjax --from=markdown --to=html --toc $MARKED_PATH

that is working prefectly, but if i add the  --bibliography  call:

#!/opt/local/bin/fish
#produce selfcontaine html,good to check with browser
pandoc --standalone --mathjax --from=markdown --to=html --toc $MARKED_PATH --bibliography=LOCAL_BIB.bib

From the Pandoc - Pandoc User’s Guide

--bibliography=FILE
    Set the bibliography field in the document’s metadata to FILE,
    overriding any value set in the metadata, and process citations 
    using pandoc-citeproc. (This is equivalent to --metadata 
    bibliography=FILE --filter pandoc-citeproc.)

that is essentially calling the pandoc-citeproc executable (I run version 0.4.0.1) and that could conflict with sandboxing on mac.

I don't understand why my script is also failing, Marked should call it and grab the html output, am I wrong?

Cheers,
Mario.